One vertex per element, one color per generator, with an edge from x to x·s.
(1,2,7,12)(3,9,4,8)(5,14,15,10)(6,11,16,13)(17,18,23,27)(19,24,28,32)(20,22,26,31)(21,30,29,25)(34,37)(35,43)(36,46)(42,48)(1,3,7,4)(2,8,12,9)(5,11,15,13)(6,10,16,14)(19,28)(21,29)(24,32)(25,30)(33,34,39,37)(35,44,43,40)(36,47,46,41)(38,42,45,48)(17,19,23,28)(18,24,27,32)(20,29,26,21)(22,25,31,30)(33,35)(34,40)(36,45)(37,44)(38,46)(39,43)(41,48)(42,47)(1,4,7,3)(2,9,12,8)(5,11,15,13)(6,10,16,14)(17,20)(18,22)(19,29)(21,28)(23,26)(24,25)(27,31)(30,32)(33,36,39,46)(34,41,37,47)(35,45,43,38)(40,48,44,42)(1,5)(2,10)(3,13)(4,11)(6,8)(7,15)(9,16)(12,14)(17,21,23,29)(18,25,27,30)(19,20,28,26)(22,24,31,32)(33,37,39,34)(35,44,43,40)(36,47,46,41)(38,48,45,42)(1,6,7,16)(2,11,12,13)(3,10,4,14)(5,8,15,9)(17,22)(18,26)(19,25)(20,27)(21,24)(23,31)(28,30)(29,32)(33,38,39,45)(34,42,37,48)(35,46,43,36)(40,47,44,41)A Cayley diagram is a choice, not a fact about the group. Another drawing of this group — in a book, or on a different generating set — may look nothing like this one.